Annealing-box.



' 3.11. WILLIAMS;

ANNEALING Box.

APPLICATION FILED HAITI, 1909.

P atexited se u 21,1909.

UNITED STATES PigrENT OFFICE.

' EDWABD R. WILLIAMS, OF SWISSVALE, PENNSYLVANIA, ASSIGNOR TO'PITTSBURGH STEEL FOUNDRY, OF PITTSBURG, PENNSYLVANIA, A CORPORATION OF IPENN- SYLVANIA.

ANNEALING-BOX.

Specification of letters Patent.

Patented Sept. 21, 1909.

Application filed May 27, 1909. Serial No. 498,645.

To all whom 'it may concern:

Be it known that I, EDWARD R. WILLIAMS,

a resident of Swissvale, in the county of Alor chords all formed in the interior of the box. i

A still further object of the present invention is to provide the box with convenient handles instead of the usual trunnions heretofore so generally employed in boxes of this class.

In the accompanying drawing, which illustrates applications of my invention, Figure 1, is a part sectional view and a part elevat-ional of an annealing-box constructed in accordance with my invention, particularly showin the interior of a side wall of the box; Fig. 2, a view similar to Fig. 1, showing a modified arrangement of the strengthenln members on the interior of a side-wall of t e box; Fig. 3, a transverse sectional view of the form of Fi 1; and Fig. 4, a

detail erspective view 0 a portion of a side wall 0 the box.

As' illustrated and as preferred, the box is rior sur aces free of anyprojecting parts or members; and a roof 4.

Extendingl transversely of the box and intersecting t e roof at two points only are chords or tie-members 5. These tie-members are preferably of substantially T-shape in cross-section. Extending upwardly from the lower edge of the end-walls 3 and formed on the interior surface of said walls, I provide a lurality of vertically disposed ribs 6. Forme integral with the side-walls 2 and. on the interior surface thereof I provide intersecting ribs or strengthening-members.

of the usual trunnions located on and.

section or are formed with a comparativel thin web portion and a bulbous head. In the form of Fig. 2, in addition to the vertical and horizontalintersecting ribs 7 and 8 formed on .the interior of the sidewalls, I employ inclined ribs 8. In place ro-- jecting outwardly from the side-walls o the box, I employ apertured lugs or handles 9.

These handles are preferably arranged as shown by the drawing at the uncture of the roof and side-walls although they maybe formed on the roof.

What I claim is.

' 1. An annealing-box consisting of an integral cast-metal structure comprising a roof, and end and side-walls having their exterior surfaces free of projecting parts or members said box being formed with interior strengthening-members.

2. An annealing-box consisting of an integral cast-metal structure having interior strengthening members, said box comprising a roof, side-walls, and end-walls, said walls each having its exterior surface free of a projecting part, and handles formed at the juncture of the roof and side-walls.

3. An annealing-box consisting of an integral castqnetal structure, comprising endwalls, and side-walls formed with interior intersecting ribs or strengthening-members.

4. An annealing-box consisting of an integral cast-metal structure com rising a roof, end-walls formed with vertica interior ribs, and side-walls formed with interior intersecti'ng ribs.

ribs, and a transverse tie-member intersect- -ing the roof at two oints only.

6. An annealin ox comprising a roof,

endwvalls, and si e-wallsformed withfinterior strengthening-members.

7. An annealing-box comprising a roof,

end-walls, and side-walls formed with int cw rior ribs of T-shape cross-section.

8. An annealing-box consisting of an integral cast-metal structure comprising a roof, end-wallsformed with interior vertical ribs,

side-walls formed with interior intersecting .ribs of T-shaped cross-section, and; a, transand a ertured lugs or handles located above verse tie-member of T-shape cross-section the si e'-walls. e v"intersecting the roof at two. points only. 1 In testimony whereof I aflix my signature 9. An anneeling box consisting of an intein presence of two witnesses.- gral cast metal structure compnsing a' roof, EDWARD R. WILLIAMS. end and side-walls having their exterior sur- Witnesses: faces free of projecting parts, said boxbe- A. C. WAY,

I ing'formed with interior strengthening ribs, W. G. Doommn. 

